I have a problem with messages, as sometimes I don't receive ones that are sent to me. During the day, I leave my iPhone in a locker as I work in an industrial setting and don't want to risk damaging it. When it's in there, I put it in to airplane mode so it's not constantly trying to connect to a base station, draining the battery. When I turn airplane mode off, it usually downloads any outstanding messages. However, I've had a couple of occasions where messages haven't been received on the iPhone - I know they were sent because they've turned up on my Mac, just not the phone. Has anyone else had a similar problem, and if so is there a solution? I may try having them sent to my iPad as well, now that messages sync across devices, but it would be nice to know if there's a known issue and if anything can be done to fix it... Thanks, Dave.